Hello, it runs easily on the stand, pulls up nicely. When driving, however, no full throttle is possible, it doesn’t pull, just tuckers comfortably in front of it, just before drinking. After I cleaned the main nozzle it ran about 200 – 300 m, then no more. I already tried another carburetor of the same type, it’s just like that. Does anyone have a solution proposal ? Thanks mfG